Leaf adjustment for extension tables



April 26, 1932. M. FOX 1,855,829

LEAF ADJUSTMENT FOR EXTENSION TABLES Filed July 7, 1930 gwuentoz L/ar/z'n E700.

Patented Apr. 26, 1932 UNITED STATES PATENT OFFICE MARTIN FOX, OFCHICAGO, ILLINOIS, ASSIGNOR TO THE SENG COMPANY, OF

' CHICAGO, ILLINOIS LEAF ADJUSTMENT FOR EXTENSION TABLES Applicationfiled July '7, 1930. Serial No. 466,256.

My invention relates to refectory tables of that special type havingextension leaves at opposite sides of the top carried'by rails slidableon the supporting frame for housing said leaves in spaces providedtherefor between the supporting frame and top when it is desired toreduce the size of the table, such as illustrated and described in myapplication for patent filed January 29, 1930,

Serial No. 424,395.

In extension tables of this general type having the leaves rigidlysecured to the outer ends of the rails or wood slides supporting thesame for movement to and from housed position with relation to the topaccuracy is required in the construction and assemblage of the workingparts to provide that when the leaves are in extended position atopposite sides of the top the upper surfaces of said leaves will be on aplane with the upper surface of the top, and as the slides as well asthe center rail and outer edges of the crosspiece supporting the top ofthe table with which they engage are usually made of wood any wear onthese parts will affect the adjustment.

My present invention therefore contemplates the provision of means forconnecting the extension leaves adjustably to the slides so as tomaintain smooth joints between the top and leaves respectively, theadjusting means being in the form of a metal fixture that is easilyapplied and will insure an accurate and firm adjustment of theleaveswhen the parts of the table are assembled and whenever it is desired tocorrect any inequality in the joints in using the table or which may becaused by warping.

With these principal objects in view my invention consists moreespecially in a metal fixture comprising an adjusting screw' attached toone of the parts to be adjusted, as the leaf, and in threaded engagementwith a member attached to the other part of the table, or slide, wherebyturning of the screw in either direction will raise or lower the innerend of the leaf to bring it on a line with the table top; all ashereinafter fully described and claimed. a

In the drawings showing the application of my invention to an extensiontable of the type hereinabove referred to:

Figure l is a sectional view through one end of a refectory tableprovided with adjusting means for the leaf in accordance with myinvention.

Fig. 2 is a similar view of the other end ofthe table.

Figs. 3 and 4 are enlarged sectional views showing the adjusting means,and

Fig. 5 is a detail view of the metal fixture. Although my improvedadjusting means are usable in connection with various types of extensiontables in which the area of the rigid top is increased by leaves broughton a line with said top either by slides or other leaf-supportingdevices I have herein shown the same in connection with a refectorytable of the construction illustrated in my prior application for patentreferred to, comprising a box-like supporting frame having side and endrails 10 11 at the upper ends of legs 12 with a center rail 13 on whichrests the crosspiece 14a extending between the side rails to receive thetop 14, it being observed by reference to Figs. 1 and 2 that the siderails are cut away beyond opposite ends of the crosspiece and the upperends of the posts and end rails similarly spaced from the top to receivethe extension leaves 15 in housed so position below the opposite ends ofthe top, and that the extension leaves are carried at the outer ends ofrunners or slides 16 working in slots 17 and 18 in the end rail andcenter rail respectively, said runners being of such length as tomaintain engagement with the center rail in the extended position of theleaf which it supports. The width of the slots approximate the thicknessof the leaf supporting runners or slides and as the latter slide in saidslots in the movement of the leaf to extended and housed positions thedepth of the slots correspond with the angle of inclination of therunners or slides, the underside of each runner having a depres sion 19providing for a slight lowering of the outer end of the runner or slidefor the engagement of a pin 20 thereon with the in wardly projectinghook 21 of a metal bracket 22 attached to the inner side of the end rail11 at one side of the slot 17. When the leaf is moved from housed toextended posi tion on a line with the top the runners slide on thebottomofslot 17 and the depression 19 at the underside thereof permits the pin20 to travel around the bill of the hook to rest therein with the upperedge of the runner in engagement with the outer edge of the table top tothereby support the leaf in extended position.

' I-Ieretofore the leaf 15 was rigidly secured to the. outer end of therunner or slide 16 necessitating an accurate attachment of the bracket22 on the end rail 11 so that engagement of the runner or slide with theouter edge of the crosspiece supporting the table top would, positionthe leaf on a line with said top, andof course any wear on the partssupporting the leaf would affect the joint between the top and extensionleaf or the coplanar relation of their. upper surfaces to each other. Inorder to facilitate the asse1nbling of the working parts of theextension table by providing for an adjustment of the leaf after theattachment of the bracket to the end rail, as well as at any other timethat may be required in the use of the table, my invention contemplatesa fixture for conveniently adjusting the leaf on the runner or slide. 7

In carrying out my invention the attachment of the table leaf 15 to theouter end of the runner or slide 16 isby means of an ordinary wood screw28 passed upwardly through the runner and threaded into the leaf, asshown in Fig. 3, the hole 2 through which the screw passes beingslightly larger than said screw for pivotal movement of the leaf on theouter end of the runner or slide to accommodate adjustment by thefixture hereinafter described, and the outer end ofthe hole enlarged orcountersunk, as at 25, for the use ofa short screw andto receive ascrew-driver. Th s screw enters the tableleaf near the outer end thereofor a short distance from the engagement of the leaf with the outer endof the runner or slide through whichthe screw passes, and for ad- 15, bymeans of a plate 27 and threaded a (see Fig. 4:) by reducing the upperportion of the screw where it passes through said plate and upsettingthe end thereon, the

- threaded portion of the screw which engages the plate 28 terminating aslight distance from the slotted head 26a, and both plates are providedwith holes to receive ordinary i wood screws, 29. As the adjusting screwis threaded in the plate 28 the latter will be retained on said screw bythe unthreaded portion of the screw towards the head in connec- 3: tionwith the plate 27 swivelled on the other end thereof, thus providing forintimately connecting the parts of the fixture together, and inattaching the same to the parts of the table after forming the hole 30through the runner or slide the screw is passed into said hole and plate28 secured to the slide by the wood screws 29, after which the plate 27swivelled on the upper end of the screw is turned at right angles to theslide so that the ends thereof will project beyond the opposite sides ofsaid slide to permit the manipulation of the wood screws 29 in attachingsaid plate 27 to the underside of the leaf, both plates being let intorecesses therefor in the leaf and slide respectively.

The operation of the adjusting device or fixture will be obvious fromthe foregoing 'descriptiom'for the outer portion of the extension leafbeing in contact with the outer end of the runner or slide and held inpivotal engagement by means of the wood screw 23 manipulation of theadjusting screw 26 will raise or lower th'e'inner portion of the leafabove the slide to locate the inner edge thereof on a line with thetable top, and of course the fixture can be applied to the extensionleaf and slide and approximately adjusted before connecting saidextension leaf and its runner or slide to the supporting frame of thetable.

I claim 1. In an extension table the combination of a runner slidable inthe supporting frame and carrying an extension leaf at the outer endthereof,-a pin projecting from'one side of the runner, and a metalfixture in the form of a hook with which the pin on the runner engagesfor supporting the leaf on a line with the top of the table; togetherwith means for adjusting the leaf on the slide comprising an adjustingscrew rotatably connected to the leaf and in threaded engagement withthe v slide. I

'2. In an extension table the combination of a runner slidable in thesupporting frame and carrying an extension leaf at the outer endthereof, a pin projecting from one side of the runner, and a metalfixture in the form of a hook with which the pin on the runner engagesfor supporting the leaf on a line with the top of the table; togetherwith means for adjusting the leaf on the slide comprising an adjustingscrew, a member attached to the leaf and to which the adjusting screw isrotatably connected, and a member attached to the slide and with whichthe screw is in threaded engagement for adjustment of the screw in theslide.

MARTIN FOX.

